Zimmco
Senior Member
I’m redoing a 35 pickup restoration done years ago, and have a question about cylinder heads. Almost everyone I’ve asked thinks that cast iron heads are correct, but one person that I believe is very knowledgeable about 35’s says that aluminum is correct for commercial vehicles until 36. I can’t find any documentation to confirm that, but I tend to think he’s right. Anyone know how I can check this out? Thanks!